Add 25/30 and 18/81
25/30 + 18/81 is 19/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 30 × 27 = 810,
25/30 = 25 × 27/30 × 27 = 675/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
18/81 = 18 × 10/81 × 10 = 180/810 - Add the two like fractions:
675/810 + 180/810 = 675 + 180/810 = 855/810 - 855/810 simplified gives 19/18
- So, 25/30 + 18/81 = 19/18
In mixed form: 11/18
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